Gregor Fitzi is President of the Simmel Gesellschaft. He is the author of The Challenge of Modernity: Simmel's Sociological Theory and the co-editor of the three-volume set Populism and the Crisis of Democracy. He is editor of the journal Simmel Studies.

General introduction PART I: Biography 1. Simmel's life: an unexplored continent PART II: Sociology 2. Simmel's resonance with contemporary sociological debates 3. Relations, forms, and the representation of the social life: Georg Simmel and the challenge of relational sociology as Lebenssoziologie 4. Boundaries as relations: Georg Simmel's relational theory of boundaries 5. The actuality of a sociological research programme PART III: Philosophy 6. Relativism: a theoretical and practical philosophical programme 7. The art of complicating things 8. Georg Simmel, Hans Blumenberg, and philosophical anthropology 9. Simmel's 'late life metaphysics' PART IV: Art and aesthetics 10. Art and knowledge in Simmel's thought and writing style 11. Social aesthetics 12. Philosophy of art 13. Framing, painting, seeing: Simmel's Rembrandt and the sense of modernity PART V: Literature and theatre 14. Literary practice and immanent literary theory 15. The Goethean heritage in Simmel's work 16. Simmel: the actor and his roles PART VI: Essayism and critical theory 17. Georg Simmel and the 'newspaper sociology' of the 1920s and 1930s 18. Georg Simmel and critical theory PART VII: Topics of debate 19. Freedom: an open debate 20. Georg Simmel's theory of religion 21. Georg Simmel: war, nation, and Europe 22. Simmel's cosmopolitanism 23. Economic pathologies of life PART VIII: Lines of reception 24. Simmel's American legacy revisited 25. Goffman, Schutz, and the 'secret of the other': on the American sociological reception of Simmel's 'das Geheimnis des Anderen' 26. Traces of Simmel in Latin America: modernity, nation, and memory